Tuft-tube-attaching means for tube frames



July 1 4, 19215.

E. F. HATHAWAY TUFT TUBE ATTACHING MEANS FOR TUBE FRAAMES F1166 Deo. 5. 1923 Patented July 14, 1925.

UNITED STATES PATENT o-FFICE.

EDGAR` F. HATHAWAY, OF'lJVELLESLEY,v MASSACHUSETTS, ASSllIGrNOR TO SHAWMUT l ENGINEERING COMPANY, OF BOSTON,4 MASSACHUSETTS, A CORPORATION F MASSACHUSETTS.

'Turm-Tunnfnmmacnme MEANS non TUBE FRAMES.

\ 'Application filed December 5, 1923. serial 1rd. 673,659.

T0 all whom t may concern.' h v Be it known that LEDs-AR F. `I-IATHAWAY, acitizen of the United States, and resident of W'ellesley, in the county of Norfolk and State of `Massachusetta have invented certain new and useful Improvements in Tuft-v 'lube-Attaching Means for Tube Frames, of which the following isfa specification. v

This invention relates to tube frames, such as are used in the art of tuftweaving, and is intended to provide a simple and conl venient construction bv which the tufttubes, Which'receive and guide the individual tuftelements from the yarn-spool, maybe quicklyand conveniently attached and detached from the tube frame-carrier-bar.

As is Wellknown to those skilled in this art, itjis often necessary to replace ory substitutelnew tuft tubes vfor those ordinarily .placed onthe frame, and to this end Athe invention comprises, generally speaking, the

`combination with a longitudinal carrier-bar,

ofatuft tube carrying and attaching strip provided at its opposite edrreswith projecting tongues or attachingl members adapted to interlock the cooperating ,portions of the ,carrierbar "structure in order to quickly yattach or detach afseriesof tuft tubes which are firmly secured in` parallelism to the outside ,face vof ,said attaching strip. t These and other features oftheiinvention willabe described in detail in the following `specification and will'be defined in the claims hereto annexed;y

In the accompanying drawings; Figure lisa front elevation `showing a portion of a tube frame of usual construction with myimproved attaching means ap,- plied to the carrier bar. y s

Figure 2 is a cross section through the carrierbar showinga tuft tube in elevation.

Figure 3 is a bottom plan View showing theunderside means for securing the attachf ing plate-tothe carrier.bar.v h

In the M- practice` of my l invention, according to the form illustrated in the drawing,

the longitudinalV carrier bar 1, is preferably of tubular. or hollow construction, and is secured in anv suitable manner to the chainsociated a spool .bearing bracket 4, for ro tatably supporting one end of the yarn spool (not shown herein).

At any desired intervals along the front face or vwall of theV carrier-bar I provide apertures or openings l:a for the reception of retaining or V4locking tongues, presently to be described. y

The attaching strip by -which the `tuft tubes are carried and releasably securedto .the carrier-bar,` comprises a longitudinal kplate 5, inV thiscase bent into angular form to lie against two adjacent facesof the carrier bar, namely, theV front and the bottom faces :considered with reference tothe posi-- tionv of the carrier-bar i when4 suspended downward from the carrier chains. This attaching strip, near its upper edge, is

outwardly bowed toffforin a raised rib 5c which lforms" both af stop shoulder for positioning vand aligning the parallel tuft tubes4 4which areY soldered thereto, and also serves as a. protective lcdgelto prevent-the scraping or chafingof theyarn against the sharp intake edge of the tuft tube as the yarnlis drawn through the latter. i, Y

At itsextreme upper edge the attaching strip 5, is provided withl plural tongues 5?* so shaped as to permit their insertion thrcughthe apertures la in the carrier bar to form an engaging or interlocking tongue whose ,outwardthrustis sustained by the wall ofthe carrier barfadjacent to said aperture. v c y At lvits. opposite `edge the' attaching strip is provided also With al series of short projecting tongues 5b larranged at any desired intervalsV e apart and adapted tol project through cooperating apertures 6a in a kyielding or :springslocking plate 6, whichis soldered or otherwise fastened tothe bottom .portion of the carrier-bar, it being of course vunderstood that the apertures 6a, in therefrs taining or. locking plate 6, .are positionedto register with the projecting tonguesb` on the attaching Vplate 5., Asis clearlyl indicated in Figure 2, the free edge of the resil` ient plate 6= is ,bent slightly away? from the bottom wall or face of the carrier-bar sol as V,to allow the tongues 5h to be automatically sprung into the openings by pressure transversely of the bar, which forces the free edge of the plate 6 outwardly until the tongues spring into the apertures 6, it being understood that the tongues 5a have previously been inserted through the apertures l, preparatory to thus interlocking the attaching strip firmly but releasably to the carrier bar.

WV ith thev above described construction.

there are no screws to manipulate or get lost, and a series of parallel tuft tubes of any desired number, 'Y carried on ztheir attaching plate to which they aresoldered or otherwise secured, may be instantly secured to and removed from the carrier-bar without the necessity of taking the tube frame out of the loom or away from the carrier chains.

What I claim is: Y

l. In a tube frame for tuft weaving, the combination with a hollow carrier-bar, La tube attaching and supporting strip whose upper longitudinal edge is provided `with attaching tongues formed to penetrate openings in the wall of the carrier-bar to form releasable engagement therewith, the opposite longitudinal edge of said strip being provided with locking members having releasable interlocking spring connection with the outside of the carrier-bar, and a plurality of parallel tuft tubes secured'to said attaching strip, substantially as described.

'2. In a tube frame for tuft weaving, the `combination of a longitudinal carrier-bar, a tuft tube carrying and attaching strip extending longitudinally of the bar and pro- -vided at its top and its bottom edge-s with projecting members formed to be relasably 4interlocked with external cooperating retaining means secured to the underside of the carrier-bar, by which the strip carrying the tuft tubes isfirmly secured in operative position on the bar by aV quick detachable engagement, substantially as described. n

3. In a tube frame for tuft'weaving', the combination of a longitudinal carrier bar, a 'tuft tube carrying strip provided at its opposite edges with .projecting locking members, one set of locking members being arranged to penetrate receiving orifices in the front wall of the bar, the other set'having releasable interlocking engagement with a cooperating external resilient keeper located on the underside of the carrier-bar which yields to allow the attaching strip to become interlocked and to become released therefrom, substantially as described. f

4. In a tube frame, the combination offa -longitudinal carrier-barv provided with a series of tongue-receiving apertures in one face, a retaining strip ysecured tofnext adjacent face of said bar and having tongue-re- -ceiving apertures therein, and a tube-carrying attaching strip, a series of-tuft tubes secured to said strip in parallelism with one another, said strip'liaving at its opposite ing strip securely to the carrier-bar while permitting its easy detachment therefrom, substantially as described. Y

6. In a tube frame for-tuft weaving, the combination of a vcarrier-bar, a longitudinally extending strip, a series of parallel tuft-tubes secured thereto, said strip being longitudinally bent to form two angularly disposed portions lying respectively against the front and bottom faces of the bar, each portion being formed at its edge with members adapted to form releasable interlocking connectiony with the bar to detachably secure the tube-carrying strip in position, substantially as described.'

7 A tuft-tube carrying strip comprising a longitudinal plate of angular cross-section transversely of itswlength yhaving one longitudinal edge provided with'v locking tongues adapted to interlock with corresponding recesses in one facel of a carrier-bar' and having its other longitudinal edge formed to interlock with an external retainingv member vsecured to another face of the carrier-bar, substantially as described. f

8. Attaching means fory detachably securing a row of tuft'tubesto the carrier-barv of a tube frame embracing two longitudinal attaching `strips one'of which is secured to the koutside of the lcarrier-bar, the other strip forming a tube-carrying member provided with Vbar-penetrating and ,engaging tongues vat its upper longitudinal edge and being formed at its lower longitudinal edge to have releasably interlocking spring engagement with said first mentionedstrip, whereby the `row of tuft tubes is secured to the carrier-bar by a quick detachable connection, substantially as described.

9. Attaching means for securing a row of tuft tubes to a tube frame carrier-bar'by a quick detachable connection embracing in combinationwitha carrier-bar a pair of external attaching lstrips extending longitudinally of the barV and lhaving their' adjacent edge portions-' formed to have releasable spring interlocking .engagement with each other, one of said attaching strips'carrying a row of tuft tubes' and having at its upper longitudinal edge Ameans for detachably engaging the carrier bar. Y.

l0. Means for seeuringtuft tubes to a releasably engage the adjacent edge of the tube frame carrier-bar embracing in combi tuft tube carrying strip to hold the latter nation With the carrier bar, a longitudinal firmly but detaehably against the earrier- 10 tuff; tube carrying strip Whose upper edge bar, substantially as described. .Y 5 portion is formed to hook into recessesV in In Witness whereof, I have subscribed the the center bar, and a spring keeper secured above specification. i externally to the carrier-bar and formed to EDGAR F. HATHAl/VAY. 

